T3262.hs:12:11: warning: [GHC-63397] [-Wname-shadowing (in -Wall)]
    This binding for ‘not_ignored’ shadows the existing binding
      bound at T3262.hs:11:11

T3262.hs:20:15: warning: [GHC-63397] [-Wname-shadowing (in -Wall)]
    This binding for ‘not_ignored’ shadows the existing binding
      bound at T3262.hs:19:15